John Bercow or Andy Burnham? Diane Abbott or Esther McVey? Kenneth Clarke or Eric Pickles? Thanks to a ranking website set up by one of the stars of the E4 reality television show Made in Chelsea, voters need no longer be unsure of who is the most attractive MP in the land.

Sexymp.co.uk was established by Francis Boulle, a 22-year-old diamond mining heir and apparent Chelsea resident, who said he had designed it with the aim of creating "a fun and memorable tool to help the British public get to know their members of parliament".

He "thought it would be an interesting opportunity to hold the first ever parliamentary beauty contest and find out, once and for all, which MPs and parties have the most sex appeal" – and what an opportunity.

"Which MP would you rather have sex with?" Sexymp.co.uk inquires of the visitor, above pictures of two politicians.

When the Guardian visited the site earlier, it was asked to choose between Jack Straw and Frank Field, perhaps exposing the fundamental flaw of the website – MPs don't tend to be that sexy.

"Although I fully expect this to offend some people," Boulle writes, "this was never my intention, and I hope you will see the funny side."

Some MPs might find it funnier than others, depending on their place in the table.

At the time of writing, Joseph Johnson, the Conservative MP for Orpington and the younger brother of the London mayor, Boris Johnson, was riding high in the male charts, ahead of the Richmond Park Tory MP, Zac Goldsmith.

In the female camp, Luciana Berger, the Labour and Cooperative MP for Liverpool Wavertree, had taken an early lead, with the former television presenter turned Wirral West Conservative MP, Esther McVey, in second place.

Of the current cabinet, Jeremy Hunt was the highest placed, the culture secretary attaining a respectable 10th place, while David Cameron was deemed to be the 103rd most attractive male MP.

The deputy prime minister, Nick Clegg, was a lowly 138th, just two places ahead of the former prime minister Gordon Brown, while George Osborne was 50th.

Theresa May, the home secretary, was 60th of the 142 female MPs, and Caroline Spelman, the secretary of state for environment, food and rural affairs, was 45th.

While Ed Miliband may have beaten his brother, David, to the Labour leadership, it is David who earns bragging rights here. The South Shields MP is ranked sixth, compared to Ed's 79th.

Of the rest of the shadow cabinet, Caroline Flint, the shadow communities and local government secretary, was 26th among the females, while Andy Burnham was 31st in the male camp.

Boulle is one of 13 affluent youngsters to be followed by the cameras for Made in Chelsea, which aired on E4 for the first time last month.

The international business student had not responded to the Guardian's attempts to make contact at the time of writing. According to E4's biography, he has been ranked as one of London's "most eligible young people for the past three years running".

Like most 22-year-olds, he is "most likely to be found playing polo, partying in Cannes or soaking up the sun at the Monaco Grand Prix", the blurb adds.